Affinity and Reaction Rates: Reconsideration of Experimental Data

✍ Scribed by Miloslav Pekař

• Book ID: 102255842
• Publisher: John Wiley and Sons
• Year: 2007
• Tongue: German
• Weight: 396 KB
• Volume: 90
• Category: Article
• ISSN: 0018-019X
• DOI: 10.1002/hlca.200790198

✦ Synopsis

Abstract

Two published experimental confirmations of either the linear relationship between the reaction rate and its affinity, or the ‘thermodynamic coupling’ are revised. It is shown that ‘proved’ results are more consequences of a given experimental arrangement or of methods used for the treatment of experimental concentration data than outcomes of some general thermodynamic law. The affinity should be considered not as a quantity determining the value of the reaction rate but as an alternative quantity for description of the evolution of a reacting system, its distance from equilibrium. The affinity, perhaps, expresses some potential for a reaction, but its manifestation in the reaction rate is controlled by the very kinetics.